华北农学报Issue(4)：139-144,6.DOI:10.7668/hbnxb.2015.04.024
谷子萌芽期对干旱胁迫的响应及抗旱性评价
Seed Germination Response to Drought Stress and Drought Resistance Evaluation of Foxtail Millet
摘要
Abstract
In order to explore the index of drought resistance and screen drought tolerance varieties,which can provide evidence for millet production and breeding for drought resistance,this study measured sprout index of drought resistance,vigor index of drought resistance,relative germination vigor,relative germination rate,relative plumule length and relative radicle length of twenty millet varieties to evaluate their drought resistance through a-dopting PEG solution simulated soil drought treatment.The results showed that vigor index of drought resistance,rel-ative germination rate,relative germination vigor,relative plumule length and relative radicle length could be consid-ered as the index of drought resistance which were highly significant correlation with sprout index of drought resist-ance (r =0.867 ** ,0.995 ** ,0.997 ** ,0.762 ** ,0.680 ** ,respectively).Analysis showed that,relative germination vigor and relative germination rate could be used for the first indicator of drought resistance identification at millet germination stage;vigor index of drought resistance could be used for the second indicator;relative plumule length and relative radicle length could be used for the third indicator.The sprout index of drought resistance of Changnong 40,Jinzhong 208,Changsheng 08-2,Fenxuan 446,Fu 1 2,Bao 200302,Zheng 1 2 and Changsheng 08-1 were 0.91 7 3, 0.920 5,0.865 1 ,0.869 9,0.836 6,0.831 3,0.843 0 and 0.979 5,respectively,which showed better drought resistance than others in twenty millet varieties.关键词
谷子/萌芽期/干旱胁迫/抗旱性鉴定Key words
Foxtail millet/Germination stage/Drought tolerance/Drought resistance evaluation分类
农业科技引用本文复制引用
代小冬,杨育峰,朱灿灿,鲁晓民,王春义,杨晓平,杨国红,李君霞..谷子萌芽期对干旱胁迫的响应及抗旱性评价[J].华北农学报,2015,(4):139-144,6.基金项目
农业部／财政部“现代农业产业技术体系专项资金”项目（nycytx13）；“十二五”国家科技支撑计划项目（2014BAD07B01）；河南省农业科学院自主创新基金项目 （）
